fix(gitops): CDI cold-start deadlock repaired IN THE GRAPH, not by a pre-apply
`platform-config` applied the CDI CR *and* cdi-storageprofiles.yaml in ONE pass.
StorageProfile's CRD does not exist until cdi-operator reconciles that CR, and
Flux server-side dry-runs every object before applying any — so the unknown kind
aborted the tier, the CR was never applied, the CRD was never created, and the
tier could NEVER converge. Observed on prod: cdi-operator Available 12h, no CDI
CR, no storageprofiles CRD, every downstream tier blocked.
The profiles now live in their own tier ./platform-config-cdi with
dependsOn: platform-config and wait: true. Because dependsOn is REVISION-gated
and platform-config runs wait: true, the CDI CR must be applied AND healthy —
exactly the event that creates the CRD — before the profiles are applied. Cold
clusters order themselves. `standup.sh crds` is retained as a fallback for
clusters already stuck, and because it is idempotent.
THE GENERALISABLE RULE (recorded in clusters/README.md): a CR whose CRD is
created by a CONTROLLER AT RUNTIME is second-order and needs its own pass.
cdi-operator.yaml registers exactly ONE CRD (cdis.cdi.kubevirt.io); storageprofiles,
datavolumes, datasources and dataimportcrons appear only after it reconciles the
CDI CR. An audit found StorageProfile is the only second-order kind in
platform-config — KubeVirt, CDI, KeycloakRealmImport, CNPG Cluster,
VolumeSnapshotClass, ClusterIssuer, PrometheusRule, ServiceMonitor and the Cilium
L2 CRs all have their CRD in git or in a chart.
Moving the CDI CR up into `platform` was rejected: that would put CDI's health on
the tier the CNI gates and everything waits on — the mistake the oauth2-proxy and
headlamp splits exist to undo.
apps-vms gains dependsOn: platform-config-cdi. LOAD-BEARING, not cosmetic:
apps/vms/unifi/20-datavolume.yaml provisions on storageClassName: longhorn-vm and
its comment claimed platform-config guaranteed the profiles — which this move
would have silently falsified.
THE PRUNE TRANSIENT, MEASURED RATHER THAN ASSUMED. platform-config has
prune: true, so it deletes both profiles once, CDI recreates them with empty spec,
and the new tier re-applies the overrides ~30-60s later. Compared our override
against CDI's unaided inference for the same Longhorn provisioner on dev:
longhorn-vm (we override) spec RWX/Block -> status ReadWriteMany/Block
longhorn-static (no override) spec unset -> status ReadWriteOnce/Block
Both infer cloneStrategy: snapshot. So cloneStrategy is NOT at risk; accessModes
IS — unaided CDI gives RWO. A DataVolume provisioned on longhorn-vm inside the
window would be stamped RWO/Block and be PERMANENTLY non-live-migratable. Flux can
no longer cause it (apps-vms gates on the new tier); a human must not do it by hand.
Corroborating evidence that the recreate happens at all: dev has 5 StorageClasses
and 5 StorageProfiles, three with fluxOwner=NONE, spec unset and status populated
— CDI creating and inferring them with no Flux involvement.
MERGE PRECONDITION: `flux get kustomization platform-config` must be Ready on the
target first. If it is not, the profiles are pruned and sit at CDI defaults until
it recovers — and prod was in that state hours earlier. Fallback is the two-step
the Cilium move used (merge with prune: false, verify the ownership label moved,
restore prune: true).
substituteFrom: cluster-vars is declared even though the manifest has no ${TOKEN},
deliberately: conformance/tests/l0-static/flux-postbuild-substitution only audits
paths whose Kustomization declares it, so omitting it would move the file OUT of
the audited set — a blind spot for a future literal-token ship. Gate confirms it
stayed in (path=./platform-config-cdi files=2 defined=0 hazards=0). No SOPS
decryption stanza: the moved file is two plain CRs, so no overlay change was needed.
VERIFIED INDEPENDENTLY OF THE AGENT: platform-config renders 0 StorageProfile
while keeping the CDI and KubeVirt CRs; platform-config-cdi renders exactly the
two profiles; the graph is byte-identical across dev and prod with apps-vms
carrying both edges and no cycle. Full CI gate PASS.
KNOWN FOLLOW-UP: bootstrap/standup.sh TIER_ORDER does not yet include
platform-config-cdi, so `resume` will not wait on it. Another agent holds that
file; the PM will add it.
Refs R-GITOPS-01, R-ENV-02.
Co-Authored-By: Claude Opus 5 <[email protected]>
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@@ -4,8 +4,11 @@
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# NON-GATING (wait:false): unlike the app waves, this does NOT health-wait. A VM's first-boot image
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# import (CDI, minutes) + in-guest software install mean a VM can be intentionally long-not-Ready, so
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# health-gating it would wedge reconciliation for no benefit. VMs have no in-cluster dependents.
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# dependsOn platform-config so KubeVirt/CDI + the longhorn-vm StorageClass + CDI StorageProfiles
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# exist first. prune:true — this Kustomization solely owns the VM manifests (no adoption concern).
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# dependsOn platform-config so KubeVirt/CDI + the longhorn-vm StorageClass exist first, AND
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# platform-config-cdi so the CDI StorageProfiles do (2026-09-05: the StorageProfiles MOVED OUT of
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# platform-config into their own tier, so `dependsOn: platform-config` alone NO LONGER guarantees
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# them — see the dependsOn block). prune:true — this Kustomization solely owns the VM manifests (no
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# adoption concern).
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apiVersion: kustomize.toolkit.fluxcd.io/v1
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kind: Kustomization
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metadata:
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@@ -19,6 +22,28 @@ spec:
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wait: false
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dependsOn:
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- name: platform-config
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# LOAD-BEARING, not decoration. apps/vms/unifi/20-datavolume.yaml provisions a DataVolume on
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# storageClassName `longhorn-vm`, and CDI reads StorageProfile/longhorn-vm AT PROVISIONING TIME to
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# decide the claim's accessModes/volumeMode. Without that profile's `claimPropertySets`
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# (ReadWriteMany + Block) the PVC is stamped RWO/Filesystem and the VM disk is PERMANENTLY not
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# live-migratable — a silent, unrecoverable-without-recreate loss. The profiles used to arrive
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# with platform-config; since 2026-09-05 they arrive with `platform-config-cdi`, so the edge has
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# to move with them. platform-config-cdi runs wait:true and StorageProfile has no status
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# conditions (kstatus -> Current on apply), so this edge cannot stall this tier.
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#
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# HONEST LIMIT: CDI provisions from the profile's STATUS, which its storageprofile-controller
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# derives from our spec. This edge proves the spec is applied, not that CDI has folded it into
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# status — that is a watch-triggered round-trip of seconds against a ~30s dependency requeue, so
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# it is a timing argument rather than a guarantee. See clusters/base/platform-config-cdi.yaml.
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#
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# This edge also makes the StorageProfile prune/recreate transition safe: platform-config's prune
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# deletes the two profiles for the ~30-60s before platform-config-cdi re-applies them, and this
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# dependsOn is what guarantees Flux cannot create a DataVolume inside that window.
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#
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# The platform-config edge above is kept although platform-config-cdi already dependsOn it: the
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# edges are a set, there is no cycle, and stating both means a future edit to platform-config-cdi
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# cannot silently drop this tier's KubeVirt/StorageClass gate.
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- name: platform-config-cdi
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sourceRef:
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kind: GitRepository
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name: flux-system
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@@ -14,6 +14,15 @@ resources:
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- cilium.yaml # Flux Kustomization -> ./platform/cilium (dependsOn flux-system, wait:true)
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- platform.yaml # Flux Kustomization -> ./platform (CONTROLLERS: HelmReleases / CRDs)
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- platform-config.yaml # Flux Kustomization -> ./platform-config (CONFIGS: CRs; dependsOn platform)
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# SECOND-ORDER CDI configs — CRs whose CRD is created by a controller AT RUNTIME, not by any
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# manifest in git. cdi-operator.yaml registers only `cdis.cdi.kubevirt.io`; `storageprofiles` (and
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# datavolumes, datasources, …) appear only after cdi-operator reconciles the `CDI` CR that
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# platform-config applies. Because Flux dry-runs every object in a pass before applying any of them,
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# keeping the StorageProfiles in platform-config was a TRUE DEADLOCK (unknown kind -> pass aborts ->
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# CR never applied -> CRD never created -> tier never converges), invisible on dev and fatal on any
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# cold cluster — observed on prod 2026-09-05. This tier is the durable fix; `standup.sh crds` stays
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# as the belt-and-braces repair for clusters already wedged. See clusters/base/platform-config-cdi.yaml.
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- platform-config-cdi.yaml # Flux Kustomization -> ./platform-config-cdi (dependsOn platform-config)
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# App tier, split into dependency-ordered WAVES (was the single ./apps `apps` Kustomization).
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# Each apps-wave-<N> dependsOn wave N-1 (wave 0 dependsOn platform-config) and health-gates
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# (wait:true) ONLY its own wave, so a crashloop in a later wave can't stall an earlier one.
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@@ -0,0 +1,135 @@
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---
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# Flux Kustomization: SECOND-ORDER CDI CONFIGS — reconciles ./platform-config-cdi.
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# Serves R-GITOPS-01 (all desired state in git, reconciled by Flux) and R-ENV-02.
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#
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# WHY THIS TIER EXISTS — the durable fix for the 2026-09-05 prod CDI DEADLOCK
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#
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# `platform-config` applied the `CDI` CR and the CDI `StorageProfile`s in the SAME pass.
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# kustomize-controller server-side DRY-RUNS EVERY object before applying ANY of them, and
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# `storageprofiles.cdi.kubevirt.io` does not exist until cdi-operator has reconciled that `CDI` CR.
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# So the unknown kind aborted the whole tier → the CR was never applied → the CRD was never created →
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# platform-config could NEVER converge and every tier below it stayed blocked. Not a race: a
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# deadlock. cdi-operator was Available for 12h on prod with no CR. Invisible on dev (its CDI CRDs
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# have existed for months), FATAL on any cold cluster. See DECISIONS-LOG 2026-09-05.
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#
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# `bootstrap/standup.sh crds` pre-applies the `CDI` CR to break it by hand. That is a WORKAROUND and
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# stays as belt-and-braces for clusters already wedged; THIS Kustomization is the fix that makes the
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# graph order itself, so a cold cluster needs no human in the loop.
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#
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# THE ORDERING GUARANTEE, precisely: `dependsOn` is REVISION-gated, not merely Ready-gated (verified
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# against kustomize-controller v1.4.0 `kustomization_controller.go :: checkDependencies`, our
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# version): sharing a GitRepository with the dependency, this Kustomization cannot reconcile revision
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# N until `platform-config` has APPLIED revision N — and, because platform-config runs `wait: true`,
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# not until the `CDI` CR it applied is HEALTHY. cdi-operator creates the remaining CDI CRDs as part of
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# reaching that state, so by the time this tier's first dry-run runs, `StorageProfile` is a known
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# kind. One edge, no pre-apply.
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#
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# WHY NOT just move the CDI CR earlier, into `platform`? Because `platform` is the tier the CNI gates
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# and everything else waits on: putting CDI's health on that critical path is the mistake the
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# oauth2-proxy/headlamp splits were made to undo. The CR is correctly a platform-config CR; it is the
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# StorageProfiles that were in the wrong pass.
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apiVersion: kustomize.toolkit.fluxcd.io/v1
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kind: Kustomization
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metadata:
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name: platform-config-cdi
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namespace: flux-system
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spec:
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interval: 10m
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# 2m (short, deliberately). kustomize-controller caches API discovery, so on a COLD cluster the
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# very first attempt here can still fail `no matches for kind "StorageProfile"` even though the CRD
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# now exists — a stale RESTMapper, not a missing CRD (the failure mode `standup.sh crds` warns
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# about). The controller resets the mapper and the retry succeeds, so the only cost of that stale
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# cache is one retryInterval. Keep it short.
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retryInterval: 2m
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# 2m is ample: this tier applies two tiny cluster-scoped CRs. There is no workload to roll out, no
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# image to pull and no controller to become Available, so a slow apply here means a real error, not
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# a slow rollout — failing fast surfaces it instead of burning 5m per attempt.
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timeout: 2m
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# TRUE, and this tier is the SOLE declarer of both StorageProfiles (checked repo-wide), so prune is
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# component-scoped: the stale set can only ever be a StorageProfile this file stopped rendering.
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# It is NOT the platform/cilium case — nothing here declares a shared Namespace, or any object a
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# second path also declares. See the transition note at the bottom of this file.
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prune: true
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# TRUE, but understand exactly what it buys and what it does NOT.
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#
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# CANNOT STALL: `StorageProfile`'s status type (CDI v1beta1 StorageProfileStatus: storageClass,
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# provisioner, claimPropertySets, cloneStrategy, dataImportCronSourceFormat) carries NO
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# `conditions` and NO `observedGeneration`, so kstatus's generic path reports it Current the moment
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# it is applied. `wait: true` therefore adds a Ready condition without adding a way to hang — which
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# is why it is safe to let `apps-vms` gate on it (contrast the headlamp gating stall).
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# If a resource that CAN be unhealthy is ever added to ./platform-config-cdi, re-derive this:
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# `apps-vms` waits on it.
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#
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# WHAT IT DOES NOT PROVE (honest gap): CDI reads the profile's **status**, not its spec, when it
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# provisions a claim (status.claimPropertySets / status.cloneStrategy), and CDI's
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# storageprofile-controller computes that status from our spec override plus inference. So Ready
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# here means "the spec override is accepted by the API server", not "CDI has folded it into
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# status". That reconcile is a watch-triggered round-trip of seconds, and the dependency requeue
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# below it is ~30s, so a DataVolume cannot realistically beat it — but it is a timing argument, not
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# a guarantee, and no `wait` setting can turn it into one (there is no condition to wait on).
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wait: true
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dependsOn:
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# platform-config applies the `CDI` CR and (wait:true) waits for it to be healthy — which is what
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# causes cdi-operator to create `storageprofiles.cdi.kubevirt.io`. Revision-gated, so this is an
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# ordering guarantee and not a hope. Transitively this also chains platform -> cilium ->
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# flux-system, so `cluster-vars` at revision N is applied before this renders revision N.
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- name: platform-config
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sourceRef:
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kind: GitRepository
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name: flux-system
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path: ./platform-config-cdi
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# NO SOPS `decryption` stanza: ../platform/kubevirt/cdi-storageprofiles.yaml is two plain CRs with
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# no Secret and no *.sops.yaml, so neither overlay needs to patch one in (unlike
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# oauth2-proxy/headlamp/crafty/velero, which each carry an encrypted Secret). Nothing to add to
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# clusters/dev or clusters/prod for this tier.
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#
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# substituteFrom cluster-vars: the manifest currently contains NO `${TOKEN}`, so this stanza
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# substitutes nothing today. It is declared anyway for two concrete reasons, not for symmetry:
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# 1. COVERAGE. conformance/tests/l0-static/flux-postbuild-substitution/check.sh only audits paths
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# whose Kustomization declares substituteFrom. Omitting it would move
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# cdi-storageprofiles.yaml OUT of the audited set — a blind spot where a future `${TOKEN}`
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# could ship as a literal string, precisely the class of bug that check exists to stop.
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# 2. FAIL-CLOSED. kustomize-controller runs --feature-gates=StrictPostBuildSubstitutions=true, so
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# with this stanza an undefined token FAILS this Kustomization loudly instead of rendering
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# empty. Without the stanza there is no substitution at all and the literal ships silently.
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postBuild:
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substituteFrom:
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- kind: ConfigMap
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name: cluster-vars
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# ── FIRST RECONCILE AFTER MERGE: a TRANSIENT DELETE-THEN-RECREATE. READ BEFORE MERGING. ──────────
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# Moving cdi-storageprofiles.yaml out of ./platform-config drops both StorageProfiles from THAT
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# Kustomization's inventory, and platform-config has `prune: true` — so its next apply DELETES
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# StorageProfile/longhorn and StorageProfile/longhorn-vm, and this Kustomization recreates them on
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# the following reconcile (revision-gated: strictly after platform-config's apply, so there is no
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# dual-ownership fight — the objects are pruned before they are re-applied under this tier's
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# `kustomize.toolkit.fluxcd.io/name=platform-config-cdi` label).
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#
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# Why that is acceptable here — and it is NOT the platform/cilium case:
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# * Neither object is the sole (or any) declarer of a shared object. No Namespace, no ConfigMap,
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# nothing else in the repo declares a StorageProfile. The stale set is exactly two
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# cluster-scoped CDI CRs.
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# * The objects do not actually go missing: CDI's storageprofile-controller creates a
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# StorageProfile per StorageClass and recreates a deleted one, with an EMPTY `.spec` and
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# inferred `.status`. So the transient is "our .spec overrides are absent", not "the object is
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# absent".
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# * A StorageProfile is read at DataVolume/PVC PROVISIONING and CLONE time only. Existing PVCs,
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# existing DataVolumes and running VMs do not consult it again, so nothing already provisioned
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# is disturbed and no data path is touched.
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# * The only exposure is a DataVolume/clone STARTED inside the window: it would clone by `copy`
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# instead of `snapshot`, and on `longhorn-vm` be stamped RWO/Filesystem instead of RWX/Block —
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# permanently non-live-migratable for that disk. Flux cannot cause that, because `apps-vms` now
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# dependsOn THIS tier (clusters/base/apps-vms.yaml), so no Flux-managed DataVolume can be
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# created while the overrides are absent. A human running `virtctl`/`kubectl` in that minute
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# could.
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#
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# PRECONDITION THE OPERATOR MUST CHECK, because it is what bounds the window: the recreate cannot
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# happen until `platform-config` is Ready, and platform-config runs `wait: true` over the whole
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# config tier (ClusterIssuers, wildcard Certificate, Gateway, Keycloak, CNPG, KubeVirt, CDI…). On a
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# healthy cluster that is seconds and the window is ~30-60s (kustomize-controller's
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# --requeue-dependency default is 30s). If platform-config is NOT Ready when this merges, the
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# StorageProfiles are pruned and stay at CDI defaults until it recovers. So:
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# `flux get kustomization platform-config` must be Ready BEFORE merging.
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# If it is not, do the two-step the cilium move used instead: merge with `platform-config.prune`
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# temporarily set to `false` (the objects are then dropped from its inventory but NOT deleted, and
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# this tier ADOPTS them with zero window), verify the ownership label transferred, then restore
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# `prune: true` in a second commit.
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